Hello! I was wondering if anyone could help me with the following hypothetical problem: I have a structure consisting of approximately 1 ton of copper. I need to calculate the amount of heat required to raise the temperature of an area of the structure to 200C within a timeframe of 20 mins. This requires taking into consideration heat lost to thermal transfer. I understand that copper has a thermal conductivity of 385 W/m K and that the first step will be to calculate the flux rate by applying Fourier's Law. However, I'm at a loss where to go from here. If anyone can hep me with this problem I'd greatly appreciate it.